Before gaining the title Augustus, what was the name of this Roman leader?

The Roman leader known as Augustus was originally named Octavian. Augustus was adopted by Julius Caesar, which significantly influenced his rise to power after Caesar's assassination. The title "Augustus" was conferred upon him in 27 BCE, marking the beginning of the Roman Empire and his role as its first emperor. Octavian effectively transitioned from being part of the Roman Republic to establishing imperial rule, wielding considerable political and military authority. His ability to consolidate power and implement reforms laid the foundation for a stable government, allowing Rome to enjoy an extended period of peace known as the Pax Romana.